| | | quote | Originally posted by Fieroking:
The reason for using relay's is, the relay can carry a heavier Amp Load. The switches in the GXP column provide a path to ground for the relays coil, The contacts in the relay carry the load this way I don't burn out the GXP column switches that are dainty little princesses.
I don't know the amp loads but as an example the fuse for the turn signal/ backup lights is 20 amps. Most automotive relays can carry 15 amps with no problem. The main relays in the power circuit Aux and Run are rated at 30 amps.
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I know what relays are for. I was just hoping there was a little more clarity on whether or not they were actually needed in this specific application, but it seems there isn't. I wasn't planning on adding any additional relays here, as you did, so I'm curious as to what the real numbers would say about it. But if there's no real information on whether or not they're necessary, that's fine. I'm not trying to argue or anything, just wondering how much information there is on it.
For what it's worth, the Haynes manual for my S-10 (99), suggests in the wiring diagrams in the back, that there aren't any additional relays in the circuit, beyond the normal headlamp relays. But it and the GXP have DRL also, so perhaps the normal circuit is just sufficiently different in that area? The S-10 diagram suggests there are probably 10 amps normally going through the turn signal switch (with a 15 amp fuse); and probably 15 going through the headlight switch itself, with a 20 amp fuse.
